body {
animation-name: anbg;
animation-duration: 30s;
animation-timing-function: ease;
animation-iteration-count: 1;
animation-fill-mode: forwards;
}
@keyframes anbg {
3% {
  background-image: url("https://localhost/wwwbin/u/0/1236/img/feedleave.jpg");
}
7% {
  background-image: url("https://localhost/wwwbin/u/0/1236/img/feedleave2.jpg");
}
13% {
  background-image: url("https://localhost/wwwbin/u/0/1236/img/feedleave2.jpg");
}
17% {
  background-image: url("https://localhost/wwwbin/u/0/1236/img/feedleave.jpg");
}
100% {
  background-image: url("https://localhost/wwwbin/u/0/1236/img/feedleave.jpg");
}
}